EP 2540410 B1 20160316 - Screw and method for producing a screw thread
Title (en)
Screw and method for producing a screw thread
Title (de)
Schraube und Verfahren zur Herstellung eines Schraubengewindes
Title (fr)
Vis et procédé de fabrication d'un filetage de vis
Publication
Application
Priority
DE 102011078256 A 20110629
Abstract (en)
[origin: EP2540410A1] The screw comprises a thread (26), which is produced by a rolling process, particularly a flat baking rolling process. The thread is formed by two material beads, which forms a base body in the rolling process of the base body by cold forming. The thread comprises a closing fold (32), at which the material beads meet one another. The closing fold is arranged in an area of a thread flank (30a,30b) of the thread. The closing fold is provided on the thread flank of the thread pointing against the load impact direction (L). An independent claim is included for a method for manufacturing a screw thread.
IPC 8 full level
B21H 3/06 (2006.01); F16B 25/00 (2006.01)
CPC (source: EP US)
B21H 3/06 (2013.01 - EP US); F16B 25/0026 (2013.01 - EP US); F16B 25/0047 (2013.01 - EP US)
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
DOCDB simple family (publication)
EP 2540410 A1 20130102; EP 2540410 B1 20160316; CN 102852939 A 20130102; CN 102852939 B 20160615; DE 102011078256 A1 20130103; ES 2577145 T3 20160713; PL 2540410 T3 20160930; TW 201314062 A 20130401; TW I561737 B 20161211; US 2013004262 A1 20130103; US 8899898 B2 20141202
DOCDB simple family (application)
EP 12170822 A 20120605; CN 201210214812 A 20120626; DE 102011078256 A 20110629; ES 12170822 T 20120605; PL 12170822 T 20120605; TW 101117158 A 20120515; US 201213533422 A 20120626